Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Nomeie o No. 5 que tem um No. 6 de ethan, e um No. 4 de william, e um No. 9 de john?
 ###Tabelas: CREATE TABLE past_wac_women's_basketball_tournament_results (past_wac_women's_basketball_tournament_results_id AUTO_INCREMENT PRIMARY KEY, Year INT, Winner VARCHAR, Score VARCHAR, Opponent VARCHAR, Location VARCHAR) CREATE TABLE male_names (male_names_id AUTO_INCREMENT PRIMARY KEY, Region (year) VARCHAR, No. 1 VARCHAR, No. 2 VARCHAR, No. 3 VARCHAR, No. 4 VARCHAR, No. 5 VARCHAR, No. 6 VARCHAR, No. 7 VARCHAR, No. 8 VARCHAR, No. 9 VARCHAR, No. 10 VARCHAR) CREATE TABLE norwegian_clubs'_performance_in_europe (norwegian_clubs'_performance_in_europe_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Contest and round VARCHAR, Opponent VARCHAR, 1st leg score* VARCHAR, 2nd leg score** VARCHAR, Aggregate score VARCHAR) CREATE TABLE wrestling (wrestling_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Seasons VARCHAR, Regular season VARCHAR, Tournament INT, Total INT) CREATE TABLE races (races_id AUTO_INCREMENT PRIMARY KEY, Rnd INT, Race Name VARCHAR, Circuit VARCHAR, City/Location VARCHAR, Date VARCHAR, Pole position VARCHAR, Fastest lap VARCHAR, Winning driver VARCHAR, Winning team VARCHAR, Report VARCHAR)  
SELECT No. 5 FROM male_names WHERE No. 6 = ethan AND No. 4 = william AND No. 9 = john